I HAVE A 2003 SPORTSMAN 700 THAT HAS BEEN HEAVILY MODIFIED. I AM TRYING TO GET THE TMX 38 THAT AAEN PERFORMANCE SELLS TO WORK. TOP END AND MID RANGE ARE PERFECT, BUT IF YOU TRY TO GO FROM IDLE TO WIDE OPEN THROTTLE IT BOG AND DIES. IF YOU GET THE RPM'S UP A LITTLE THEN GO TO WIDE OPEN THROTTLE ITS NOT AS BAD. ANY SUGGESTIONS ??? ANYBODY USING A DIFFERENT CARB ON A 700.

 

Sounds like it may be too rich or lean on the low speed circuit,Do you have an air cleaner on it,If not- too lean.There should be some restriction on the intake side-are there any adjustments?You may want to get the Mikuni tuning guide-could save you hours or even days guessing.

 

install a accerator pump kit the carb companies sell. i have used them on 4 stroke dirt bike when changing to larger carbs.

 

THANKS, DO YOU KNOW ANYONE WHO CARRIES A KIT FOR A MIKUNI 38 TMX ????

 

try the major mikuni carb dealers listed in the cycle and quad magazines.

 

What do you have done other than the carb???

I tried that carb and had NO luck with it at all. I ended up using the HO carb---just bolt on and go!!!




Chris Rowe
trborowe@Mounet.com

 

TUNED HEADER, PIPE, COMPLETE ROLLER SECONDARY FROM A SCRAMBLER BUILT BY AAEN PERFORMANCE,
AAEN PRIMARY CLUTCH KIT. PORTED HEAD, 11 TO 1 PISTON, AND CAM. MODIFIED AIR BOX WITH K & N FILTER.

 

Cool!!!!

Where did ya get the pistons and cam????

I had been wanting to do this to mine to finish it up.

How big of a difference did ya see from these parts?? I bet a bunch, b/c I didnt gain as much as I hoped from the pipe, carb, clutch kit, and air box that I have on mine now.



Chris Rowe
trborowe@Mounet.com

 

THE PISTON IS A WEISCO AND THE CAM IS FROM AAEN PERFPRMANCE. AND YES IT MAKES A BIG DIFFERENCE, IF YOU CAN GET A CARB TO WORK. STILL WORKING ON THAT ONE.

 

Did ya get the pistons from AAEN???

Thanks!!!


Chris Rowe
trborowe@mounet.com